From 96cffe88e72cefa29c13dd839332b0cc7ce42ed2 Mon Sep 17 00:00:00 2001
From: Dirk Hohndel <dirk@hohndel.org>
Date: Sun, 31 May 2015 16:12:56 -0700
Subject: [PATCH] Fix crash

With no dive sites we dereference a NULL pointer.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
---
 qt-ui/maintab.cpp | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/qt-ui/maintab.cpp b/qt-ui/maintab.cpp
index 720193a6b..2ecfb6c6d 100644
--- a/qt-ui/maintab.cpp
+++ b/qt-ui/maintab.cpp
@@ -219,8 +219,13 @@ MainTab::~MainTab()
 
 void MainTab::setCurrentLocationIndex()
 {
-	if (current_dive)
-		ui.location->setCurrentText(get_dive_site_by_uuid(current_dive->dive_site_uuid)->name);
+	if (current_dive) {
+		struct dive_site *ds = get_dive_site_by_uuid(current_dive->dive_site_uuid);
+		if (ds)
+			ui.location->setCurrentText(ds->name);
+		else
+			ui.location->setCurrentText("");
+	}
 }
 
 void MainTab::enableGeoLookupEdition()